An interesting sort problem

[jd1008]

On 11/27/2015 03:29 AM, Andrew Haley wrote:
> #!/bin/awk -f
> {
>       lines[NR]=$NF " " $0
> }
>
> END {
>       PROCINFO["sorted_in"]="@val_type_asc"
>       for (i in lines) {
> 	 line = lines[i]
>           j=index(line, " ")
>           print substr(line, j+1)
>       }
> }
Hi Andrew,
manpage for awk does not betray any info on making sort in reverse.
What is the incantation in this script to make the sort in reverse?